Leptin is a chemical messenger which is secreted by fat cells that act as an appetite suppressant.
Leptin is a hormone of energy expenditure. It is made of adipose cells and helps to regulate energy balance by way of inhibiting hunger.
Both hormones they act as receptors in the arcuate nucleus of the hypothalamus. When someone is obesity, the sensitivity to leptin decreases.
Answer:
In the human adult, the bone marrow produces all of the red blood cells, 60–70 percent of the white cells (i.e., the granulocytes), and all of the platelets. The lymphatic tissues, particularly the thymus, the spleen, and the lymph nodes, produce the lymphocytes (comprising 20–30 percent of the white cells).
Answer:
False.
Explanation:
Mononuclear phagocyte comprises of cells defined from the bone marrow progenitors, cells that descend blood monocytes and tissue macrophages. This undergo phagocytosis and they phagocytes foreign Invaders and bacteria. That is they ingest or engulf any foreign substances in the liver cells.